Statistical Analysis Of Remote Structure Of Huize Lead - Zinc Mine In Yunnan Province And Study On Extraction Of Alteration Information

Huize Lead&Zinc ore deposit is the most important production base of lead-zinc mine,belonged to the Sichuan-Yunnan-Guizhou Zn-Pb polymetallic metallogenic belt.Orderly after60years of exploration and development, now facing resources drying up problem is increasingly serious.In conventional prospecting work under the condition of difficult increasingly, new and high technology to look for new mineral resources has become a problem to be solved.While in recent years the rapid development of satellite technology provides possibility to solve the above difficulties.The research relies on school-enterprises cooperation project (Huize super-large pb-zn deposit of deep and periphery of concealed ore prospecting prediction and increase reserve research) and the high-tech industry development project plans of Yunnan province (the application of mineral resources remote forecast evaluation technology in Yunnan Northeast mine set district), comebined with remote sensing and mathematics geology phase, taking RapidEye images, and Landsat-5and the Landsat-8data as the based information, using a variety of theoretical approaches in-depth analysis on the basis of the extracting of the construction and alteration information of huize pb-zn deposit, ultimately providing a basis for decision making prospecting work and the main results achieved are as follows:1.Collecting basic geological information of the northeast of Yunnan and Huize lead-zinc deposit, understanding geological characteristics including strata, structure, magmatic activity, deposit,ore-controlling conditions and alteration,etc to be prepared for the subsequent remote sensing research.2. The paper uses the factor analysis method to obtain the huize lead-zinc deposit of shallow tectonic Ore-forming Favorability information,on the basis of which is done, five times trend surface contour map of Ore-forming Favorability is done, characterized more reasonably the deep ore-controlling structure form and combination characteristics of mining area, and finally the huize areas deep tectonic mineralization favorable size distribution characteristics under the background is obtained by residual analysis.3. Based on the linear structure of fracture or mathematical characterization of the variable circular ring-shaped intrusions of Centre and edge information Center of Symmetry and Distortion Index contour map, providing certain reference for the appropriate field work carried out in the future.4. On the basis of having understanding the characteristics of the typical alteration of the study area, using the TM and OLI multispectral data to extract the alteration information by the six methods of PCA, ICA, Ratio, MPH, SAM and the mixed pixel decomposition and comparative test is done and evaluated the actual effect of various types of methods.5. In the study, Structure Ore-forming Favorability and two Class Alteration Exception is defined as a Remote Sensing Ore-forming System of Synthetical Anomaly", geological map of the qualitative information in the diagram of metallogenic prospective areas. Drawing4allogenic prospect areas with the method of qualitiave comparison information.